*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#app {
    width: 1200px;
    margin: 0 auto;

}
.edit{
    width: 1200px;
    height: 800px;
    
}
#container{
    height: 800px;
    margin-left: 20px;
    padding-left: 20px;
    border: 1px solid;
}
.art {
    border-bottom: 4px solid red;
    margin: 5px;
}
button{
    width: 80px;
    height: 80px;
    border-radius: 5px;
}